2026-03-11T00:56:52Z https://ir.kagoshima-u.ac.jp/oai

oai:ir.kagoshima-u.ac.jp:00004555 2026-03-03T08:46:51Z 228:273:5345 35:36

Combined system between Nb_3Ge microbridge and a portable-hydrogen-liquefier Nb_3Geマイクロブリッジとポータブル水素液化器との結合系 YUDA, Masahiro 湯田, 正宏 ICHIMARU, Osamu 一丸, 修 NUMATA, Tadashi 沼田, 正 OGUSHI, Tetsuya 大串, 哲彌 SAUR, Eugen open access If a Josephson junction can be performed in normal-boiling-liquid-hydrogen the applications of cryo-electronic devices will be greatly expanded. Such a technique has two great advantages. One of those is that it is helpful for the shortages of He gas. The other one is there are no heat spots because of good thermal contact with the liquid. Therefore the sample temperature can very easily be kept constant in contrast with using cold He gas. An examination on the combined systems of a Josephson microbridge and a very small liquefier of hydrogen was carried out. It was necessary that the microbridge had a higher superconductive-critical-temperature than the normal boiling-liquid-hydrogen-temperature. High pressure H_2 in an bonbe was use to make hydrogen liquid using the Joule-Thomson effect. A zero-voltage current of the Nb_3Ge mlcrobridge was observed in the liquefied hydrogen. 鹿児島大学 Kagoshima University 1984-11 eng departmental bulletin paper VoR http://hdl.handle.net/10232/11244 https://ir.kagoshima-u.ac.jp/records/4555 0451212X AN00040363 鹿児島大学工学部研究報告 The research reports of the Faculty of Engineering, Kagoshima University 26 135 138 https://ir.kagoshima-u.ac.jp/record/4555/files/AN00040363_v26_p135-138.pdf application/pdf 1.0 MB 2016-10-27 1984-11